Both the ABA three-layer blown film co-extrusion machine and the ABC three-layer co-extrusion machines are good, but they are quite different for the purposes you might intend for them. 

ABA blown film machine is a general-purpose film production machine in that the production line of the ABC machine can be used to produce a wide range of products from packaging films, symmetrical film, liquid packaging film, electrostatic protection film, heavy packaging film, while ABC machine is a machine that gives you a competitive advantage over other types of blown film extrusion machine in that it is more flexible and saves more energy during production while you enjoy lower costs of machine and products.

Also, the ABA three-layer blown film co-extrusion machine has two main motors that provide three-layer extrusion, in which one of which is responsible for providing the inner and outer coating layers of your products, while the other main one produces the inner filling layer of your products.

It can also use recycled materials and calcium carbonate for up to 70% proportion of the materials used for production.  

3-layer co-extrusion machine is a type of blown film extrusion machine used to produce greenhouse sheets, agricultural film, onstruction sheets, food packages, sacks, and many more.

3-layer co-extrusion machines are equipped with advanced automation functions for effective print production and are mainly of two types: ABA three-layer co-extrusion blown film extrusion machine and ABC three-layer co-extrusion machines.

ABA three-layer co-extrusion machine is equipped with two motors that produce the three-layer extrusion: the first machine produces the inner and outer coating layer while the other machine produces the inner filing layer, which helps conserve energy and reduce cost.

ABC three-layer co-extrusion machine can be used to produce liquid packaging film, electrostatic protection film heavy packaging film.

The Three-layer co-extrusion machine has an IBC cooling system inside the bubble, which increases its efficiency and provides low energy consumption.

Three-layer co-extrusion has the capacity to produce varieties of materials such as the LDPE, HDPE, PP, additives, masterbatches, sealant polymers, and lots more.

The short polymer flow passages of a three-layer blown film extrusion machine help speed up the extrusion process and enable you to change materials quickly.

Three-layer blown film extrusion lines are a type of blown film extrusion line used to make a plastic film or plastic sheet. 

Three-layer blown film extrusion lines are produced with high-quality raw materials with upgraded technology in sync with the required standards.

Multilayer blown film extrusion lines are equipped with advanced automation functions like centralized feeding, weight control, IBC internal cooling, automatic central winding, and weight control. All of these functions have been merged on the three-layer blown film extrusion machine touch screen, thereby enhancing your productivity and making it easy for you to operate. 

Three-layer blown film extrusion lines have many protection features such as puncture and heat resistance, reduced or no attraction to moisture and oxygen, and many others.

Three-layer blown film extrusion lines are an advanced feature and increased efficiency low energy consumption blown film extrusion line due to their IBC cooling system.

The most common raw materials used in three layers blown film line is HDPE, LDPE, LLPE, EVA, MPE, and PP.

Three-layer blown film extrusion lines can be used to produce a symmetrical film, shrink film, waterproof film in ponds, liquid packaging film, electrostatic protection film, and many others.

The 7, 9, and 11-layer blown film extrusion lines have several benefits over 3 and 5 layers blown film lines. First, with more layers, you can be creative with your production.

They offer a wide range of materials to choose from that will be in different layers. 

With the 7-layer blown film line, you can cut the cost of production compared to 3 and 5-layer blown film extrusion lines.

It also has improved barrier or strength properties and toughness to produce different materials. 

The 9 layers have a semi-rigid barrier structure, and its skin layers can be split into two to optimize performance and cost of production. 

11 layers blown film line has an even higher barrier structure, and it can help you cut the cost of producing a particular application. 

It has the flexibility to optimize barrier, rigidity, thermoformability, cost, and heat seal properties. 

Stretch hood three-layer blown film extrusion lines are blown film lines used in producing a wide range of materials ranging from packaging materials, paper, etc.

This blown film extrusion line has many features like excellent melting homogeneity, smooth bore extruders, and triple lip air ring, which provides the blown film extrusion line with a cooling rate, easily exchangeable die, etc. 

You can configure this blown film extrusion line in whichever way you want to produce the perfect product. 

You can configure the material handling, extrusion, die, air ring, tower equipment, winding, control system, and optional services.

The three layers are low stretch, medium stretch, and high stretch.

The low stretch is below 35%, while the medium stretch is between 35% to 75%, and the high stretch is 75% and above.

3-layer co-extrusion plastic blown film lines are a type of blown film extrusion line used in the production of plastic filaments in making a wide range of product varieties.

It has different parts that work together in producing quality outputs.

It has an extruder that provides high melt quality under different temperatures while still maintaining an excellent output.

The dies of a 3-layer co-extrusion plastic blown film line are designed to produce a uniform thickness of the product and high production quality.

It usually has a high-performance motor with an AC inverter drive that allows you to produce your products easily while saving energy and minimizing maintenance.

It has a high lubrication system that helps to minimize the downtime of the blown film line.

 The die heads of a 3-layer co-extrusion blown film machine are usually in three layers, and they all have inner cooling devices, while the air rings are double-lip air rings.

They have many features depending on their types and makers because there is a variety of 3-layer co-extrusion plastic blown film lines under different makers.